He knows what he is about to do. He knows that he is about to raise Lazarus from the dead in an act of power that is greater than anything they could possibly fathom, but he doesn’t say this to them. He doesn’t comfort them with hope that in just a few minutes Lazarus will be back with them. No, he weeps because they are weeping. I love this because it shows that even when salvation and redemption are just around the corner, the pain we feel now is nonetheless real and God cares about it. He feels it alongside us, because He loves us.